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Study Description

NOTE: Enrollment for DIPG and DMG has been discontinued. This study is only opened for patients with HGG without a H3 K27M mutation. 

This phase I/II trial tests the safety, side effects, and best dose of selinexor given in combination with standard radiation therapy in treating children and young adults with newly diagnosed diffuse intrinsic pontine glioma (DIPG) or high-grade glioma (HGG) with a genetic change called H3 K27M mutation.

It also tests whether combination of selinexor and standard radiation therapy works to shrink tumors in this patient population. Glioma is a type of cancer that occurs in the brain or spine. Glioma is considered high risk (or high-grade) when it is growing and spreading quickly. The term, risk, refers to the chance of the cancer coming back after treatment. DIPG is a subtype of HGG that grows in the pons (a part of the brainstem that controls functions like breathing, swallowing, speaking, and eye movements). This trial has two parts. The only difference in treatment between the two parts is that some subjects treated in Part 1 may receive a different dose of selinexor than the subjects treated in Part 2. In Part 1 (also called the Dose-Finding Phase), investigators want to determine the dose of selinexor that can be given without causing side effects that are too severe. This dose is called the maximum tolerated dose (MTD). In Part 2 (also called the Efficacy Phase), investigators want to find out how effective the MTD of selinexor is against HGG or DIPG.

Selinexor blocks a protein called CRM1, which may help keep cancer cells from growing and may kill them. It is a type of small molecule inhibitor called selective inhibitors of nuclear export (SINE). Radiation therapy uses high energy to kill tumor cells and shrink tumors. The combination of selinexor and radiation therapy may be effective in treating patients with newly-diagnosed DIPG and H3 K27M-Mutant HGG.

CHEMORADIOTHERAPY: Patients receive standard of care radiation therapy 5 days per week for 5-7 weeks. Starting on day 4 or 5 of radiation therapy, patients receive selinexor orally (PO) on days 1, 8, 15, 22, 29, 36, 43, and 50 in the absence of disease progression or unacceptable toxicity. After a 2-week rest period, patients proceed to Maintenance. Patients undergo a magnetic resonance imaging (MRI) and may undergo a biopsy during screening.

MAINTENANCE: Patients receive selinexor PO on days 1, 8, 15, and 22 of each cycle. Cycles repeat every 28 days for up to 24 cycles of maintenance therapy in the absence of disease progression or unacceptable toxicity. Patients undergo a MRI on study and during follow-up.

FOLLOW UP: After completion of study treatment, patients are followed every 3 months for year 1 (i.e., 3, 6, 9, 12 months), then every 6 months for years 2-3 (i.e., 18, 24, 30, 36 months), and finally once yearly for years 4-5 of this study.

Inclusion Criteria

PRE-ENROLLMENT

• Patients must be =< 25 years of age at the time of enrollment on APEC14B1 part A central nervous system (CNS)/high grade glioma (HGG) pre-enrollment eligibility screening
  • Please note:
    • This required age range applies to pre-enrollment eligibility for all HGG patients. Individual treatment protocols may have different age criteria.
    • Non-DIPG patients with tumors that do not harbor an H3K27M-mutation and are >= 18 years of age will not be eligible to enroll on ACNS1821 (Step 1).
• Patient is suspected of having localized, newly diagnosed HGG, excluding metastatic disease, OR patient has an institutional diagnosis of DIPG
  • Please note: there are specific radiographic criteria for DIPG patient enrollment on ACNS1821 (Step 1)
• For patients with non-pontine tumors:
  • Patients and/or their parents or legal guardians must have signed informed consent for eligibility screening on APEC14B1 Part A. 
  • The specimens obtained at the time of diagnostic biopsy or surgery must be submitted through APEC14B1 ASAP, preferably within 5 calendar days of definitive surgery
• For patients with DIPG: Patients and/or their parents or legal guardians must have signed informed consent for ACNS1821

MAIN ENROLLMENT

• Patients must be >= 12 months and =< 21 years of age at the time of enrollment
• Patients must have newly-diagnosed DIPG or HGG (including DMG).
• Stratum DIPG: - NOW CLOSED 
  • Patients with newly-diagnosed typical DIPG, defined as tumors with a pontine epicenter and diffuse involvement of at least 2/3 of the pons on at least 1 axial T2 weighted image, are eligible. No histologic confirmation is required.
  • Patients with pontine tumors that do not meet radiographic criteria for typical DIPG (e.g., focal tumors or those involving less than 2/3 of the pontine cross-sectional area with or without extrapontine extension) are eligible if the tumors are biopsied and proven to be high-grade gliomas (such as anaplastic astrocytoma, glioblastoma, high-grade glioma not otherwise specified [NOS], and/or H3 K27M-mutant) by institutional diagnosis.
• Stratum DMG (with H3 K27M mutation) - NOW CLOSED
  • Patients must have newly-diagnosed non-pontine H3 K27M-mutant HGG without BRAF V600 or IDH1 mutations as confirmed by Rapid Central Pathology and Molecular Screening Reviews performed on APEC14B1
  • Note: Patients need not have either measurable or evaluable disease, i.e., DMG patients may have complete resection of their tumor prior to enrollment. Primary spinal tumors are eligible for enrollment. For rare H3 K27M-mutant HGG in non-midline structures (e.g., cerebral hemispheres), these patients will be considered part of Stratum DMG.
• Stratum HGG (without H3 K27M mutation) - OPEN
  • Patients must have newly-diagnosed non-pontine H3 K27M-wild type HGG without BRAF V600 or IDH1 mutations as confirmed by Rapid Central Pathology and Molecular Screening Reviews performed on APEC14B1
  • Please note: 
    • Patients who fall in this category and who are >= 18 years of age are not eligible due to another standard-of-care regimen (radiation/temozolomide) that is available
    • Patients need not have either measurable or evaluable disease, i.e., HGG patients may have complete resection of their tumor prior to enrollment. Primary spinal tumors are eligible for enrollment
• Patients must have a performance status corresponding to Eastern Cooperative Oncology Group (ECOG) scores of 0, 1 or 2. Use Karnofsky for patients > 16 years of age and Lansky for patients =<16 years of age. Patients who are unable to walk because of paralysis, but who are up in a wheelchair, will be considered ambulatory for the purpose of assessing the performance score.
• Meet clinical criteria as follows:
  • Peripheral absolute neutrophil count (ANC) >= 1000/uL (within 7 days prior to step 1 enrollment)
  • Platelet count >= 100,000/uL (transfusion independent) (within 7 days prior to step 1 enrollment)
  • Hemoglobin >= 8.0 g/dL (may receive red blood cell [RBC] transfusions) (within 7 days prior to step 1 enrollment)
  • Creatinine clearance or radioisotope glomerular filtration rate (GFR) >= 70 mL/min/1.73 m^2 (within 7 days prior to step 1 enrollment) OR
    • A serum creatinine based on age/gender as follows (within 7 days prior to step 1 enrollment):
      • Age / Maximum Serum Creatinine (mg/dL):
        • 1 to < 2 years / male: 0.6; female: 0.6
        • 2 to < 6 years / male: 0.8; female: 0.8
        • 6 to < 10 years / male: 1; female: 1
        • 10 to < 13 years / male: 1.2; female: 1.2
        • 13 to < 16 years / male: 1.5; female: 1.4
        • >= 16 years / male: 1.7; female: 1.4
  • Total bilirubin =< 1.5 x upper limit of normal (ULN) for age
  • Serum glutamate pyruvate transaminase (SGPT) (alanine aminotransferase [ALT]) =< 135 U/L. For the purpose of this study, the ULN for SGPT is 45 U/L.
  • Serum amylase =< 1.5 x ULN
  • Serum lipase =< 1.5 x ULN
  • No evidence of dyspnea at rest, no exercise intolerance, and a pulse oximetry > 94% if there is clinical indication for determination.
  • Patients with seizure disorder may be enrolled if on anticonvulsants and well controlled.
• Patients must be enrolled and protocol therapy must begin no later than 31 days after the date of radiographic diagnosis (in the case of non-biopsied DIPG patients only) or definitive surgery, whichever is the later date (Day 0).
  • For patients who have a biopsy followed by resection, the date of resection will be considered the date of definitive diagnostic surgery. If a biopsy only was performed, the biopsy date will be considered the date of definitive diagnostic surgery.
• All patients and/or their parents or legal guardians must sign a written informed consent.

Exclusion Criteria

• Patients must not have received any prior therapy for their central nervous system (CNS) malignancy except for surgery and steroid medications.
• Patients who are currently receiving another investigational drug are not eligible.
• Patients who are currently receiving other anti-cancer agents are not eligible.
• Patients >=18 years of age who have H3 K27M-wild type HGG.
• Patients who have an uncontrolled infection.
• Patients who have received a prior solid organ transplantation.
• Patients with grade > 1 extrapyramidal movement disorder.
• Patients with known macular degeneration, uncontrolled glaucoma, or cataracts.
• Patients with metastatic disease are not eligible; MRI of spine with and without contrast must be performed if metastatic disease is suspected by the treating physician.
• Patients with gliomatosis cerebri type 1 or 2 are not eligible, with the exception of H3 K27M-mutant bithalamic tumors.
• Patients who are not able to receive protocol specified radiation therapy.
• Female patients:
  • Female patients who are pregnant are ineligible since there is yet no available information regarding human fetal or teratogenic toxicities.
  • Lactating females are not eligible unless they have agreed not to breastfeed their infants. It is not known whether selinexor is excreted in human milk.
  • Female patients of childbearing potential are not eligible unless a negative pregnancy test result has been obtained.
  • Sexually active patients of reproductive potential are not eligible unless they have agreed to use two effective methods of birth control (including a medically accepted barrier method of contraception, e.g., male or female condom) for the duration of their study participation and for 90 days after the last dose of selinexor. Abstinence is an acceptable method of birth control.

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Study Description

Brief Summary:

Difluoromethylornithine (DFMO) will be used in an open label, multicenter, study in combination with etoposide for subjects with relapsed/refractory neuroblastoma.

Detailed Description:

Difluoromethylornithine (DFMO) will be used in an open label, multicenter, study in combination with etoposide for subjects with relapsed/refractory neuroblastoma.

In this study subjects will receive six 21-day cycles of Etoposide and DFMO followed by an additional 630 days of DFMO alone.

Subjects will be evaluated in 3 arms:

• Arm 1: Subjects who show no active disease after receiving any additional therapy for neuroblastoma that was refractory to standard induction/consolidation therapy.

Refractory: Subjects with progressive disease on upfront therapy OR did not have at least PR on induction OR required additional second line therapy to achieve remission who are now in first remission.

• Arm 2: Subjects who have previously relapsed and currently show no active disease (in CR2 or greater).
• Arm 3: Subjects who are relapsed or refractory with active disease.

Inclusion Criteria

• All patients must have a pathologically confirmed diagnosis of neuroblastoma, ≤ 30.99 years of age with history of relapsed/refractory neuroblastoma.
• All patients must have completed upfront therapy with at least 4 cycles of aggressive multi-drug chemotherapy.
• Specific Criteria by Arm:

Arms 1 and 2:

Subjects with no active disease:

i. No evidence of residual disease by CT/MRI and MIBG scan (or PET for patients who have a history of MIBG non-avid disease).

o Note: Patients with residual masses detected by CT/MRI may be considered in CR if their MIBG is negative or if MIBG positive and evaluated by PET and found to have negative PET scans; biopsy confirmation may be considered if there is still reasonable concern for persistent disease but is not required.

ii. No evidence of disease metastatic to bone marrow.

Arm 3:

Measurable or evaluable disease, including at least one of the following:

Measurable tumor by CT or MRI; or a positive MIBG and PET; or positive bone marrow biopsy/aspirate in at least one site.

• Timing from prior therapy: Enrollment (first dose of DFMO) no later than 60 days from last dose of the most recent therapy.

• Subjects must have fully recovered from the acute toxic effects of all prior anti- cancer chemotherapy and be within the following timelines:

  1. Myelosuppressive chemotherapy: Must not have received within 2 weeks of enrollment onto this study (6 weeks if prior nitrosourea).
  2. Hematopoietic growth factors: At least 5 days since the completion of therapy with a growth factor.
  3. Biologic (anti-neoplastic agent): At least 7 days since the completion of therapy with a biologic agent. For agents that have known adverse events occurring beyond 7 days after administration, this period must be extended beyond the time during which adverse events are known to occur. The duration of this interval must be discussed with the Study Chair.
  4. Immunotherapy: At least 6 weeks since the completion of any type of immunotherapy, e.g. tumor vaccines, CAR-T cells.
  5. Anti-GD2 Monoclonal antibodies: At least 2 weeks must have elapsed since prior treatment with a monoclonal antibody.
  6. XRT: At least 14 days since the last treatment except for radiation delivered with palliative intent to a non-target site.

  7. Stem Cell Transplant:

     1. Allogeneic: No evidence of active graft vs. host disease
     2. Allo/Auto: ≥ 2 months must have elapsed since transplant.
  8. MIBG Therapy: At least 8 weeks since treatment with MIBG therapy
• Subjects must have a Lansky or Karnofsky Performance Scale score of 60% or higher.
• Life expectancy > 2 months
• All clinical and laboratory studies for organ functions to determine eligibility must be performed within 7 days prior to first dose of study drug unless otherwise indicated below.

• Subjects must have adequate organ functions at the time of registration:

  • Hematological: Total absolute neutrophil count ANC ≥750/μL
  • Liver: Subjects must have adequate liver function as defined by AST and ALT <5x upper limit of normal (Normal=45), Bilirubin <1.5x upper limit normal (Normal=1.0). Normal PT, PTT, fibrinogen.
  • Renal: Adequate renal function defined as (perform one of the following): Creatinine clearance or radioisotope GFR 70 mL/min/1.73 m2 or greater or a serum creatinine based on age/gender
• Females of childbearing potential must have a negative pregnancy test. Patients of childbearing potential must agree to use an effective birth control method. Female patients who are lactating must agree to stop breast-feeding.
• Written informed consent in accordance with institutional and FDA guidelines must be obtained from all subjects (or patients' legal representative).

Exclusion Criteria

• BSA of <0.25 m2.
• Subjects that received DFMO at a dose higher than 1000mg/m2 BID prior to this study are not eligible.
• Subjects that received a dose of DFMO in combination with etoposide are not eligible.
• Investigational Drugs: Subjects who are currently receiving another investigational drug are excluded from participation.
• Anti-cancer Agents: Subjects who are currently receiving other anticancer agents are not eligible. Subjects must have fully recovered from hematological and bone marrow suppression effects of prior chemotherapy.
• Infection: Subjects who have an uncontrolled infection are not eligible until the infection is judged to be well controlled in the opinion of the investigator.
• Subjects who, in the opinion of the investigator, may not be able to comply with the safety monitoring requirements of the study, or in whom compliance is likely to be suboptimal, should be excluded.

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Study Description

This is a phase I, open label, plus expansion clinical trial evaluating the safety and tolerability of rHSC-DIPGVax in combination with BALSTILIMAB and ZALIFRELIMAB using a 3+3 design for subjects with newly diagnosed DIPG or DMG following completion of radiation therapy. Given this is a first in-human study of rHSC-DIPGVax, an initial study "Lead In" will assess the tolerability of vaccine monotherapy first in older children (ages 5 to 18 years of age) followed by younger children (12 months to 18 years of age).

Sequential Parts A and B of this study will also first enroll patients ages 5 to 18 years of age before enrolling younger children. The rationale for the combination of vaccine and anti-PD1 therapy includes evidence of a more profound intra-tumoral response with addition of inhibition of negative co-regulatory pathways, such as, PD1/PDL1 and the need to overcome potentially immunosuppressive or immune "cold" microenvironment of gliomas. Anti-CLTA4 therapy will also be combined with rHSC-DIPGVax in the dose escalation portion of this study because of the ability of anti-CTLA4 therapy to induce T cell priming to promote T memory formation. Given the lack of standard treatment options for DIPG and DMG patients, this clinical trial will use combinatorial immunotherapy in upfront treatment of these patients in hopes of maximizing potential efficacy in this at-risk population while still assessing safety throughout.

Part A will evaluate rHSC-DIPGVax plus BALSTILIMAB. Pharmacokinetics (PK) of BALSTILIMAB will also be evaluated to assess exposure. If the rHSC-DIPGVax plus BALSTILIMAB is well tolerated in Part A for 28-days, this study will then move to enrolling Part B to evaluate the safety and tolerability of rHSC-DIPGVax and BALSTILIMAB in combination with ZALIFRELIMAB at two dose levels for a total therapy duration of one year or twenty-seven cycles, whichever occurs first.

Advancement from Part A to Part B and dose escalation in Part B will follow a conservative 3+3 design. The dose limiting toxicity (DLT) monitoring period will last 28 days (2 cycles) for Part A subjects and 42 days (1 cycle) for Part B. Subjects will be allowed to continue on in Part A for twenty-seven 14-day cycles or nine 42-day cycles in Part B or 1 year of total therapy, whichever comes first.

After the RP2D of ZALIFRELIMAB is determined, Part C, the expansion arm, will enroll further subjects at this dose level to assess futility versus efficacy. All subjects in trial Part C will be monitored for dose limiting toxicities for the duration of their participation in the study to monitor for excess toxicity.

Inclusion Criteria

• Subjects with newly diagnosed typical or non-typical, biopsy-proven DIPG or DMG are eligible for study enrollment. Biopsy is not required for subjects with radiographically typical DIPG meeting imaging criteria. Biopsy is required for DMG's and non-radiographically typical DIPG. Histone mutation must be confirmed by pathology report. Radiographically typical DIPG defined as a tumor with a pontine epicenter and diffuse involvement of more than 2/3 of the pons.
• Subjects ages > or = to 12 months and < or = 18 years ("Lead In", Part A, and Part B require first three patients be > or = to 12 years of age)
• BSA > or = 0.35m2 at the time of study enrollment
• Performance score: Karnofsky >50% of subjects >16 years of age and Lansky > or = 50 for subjects < or = 16 years of age. Subjects who are unable to walk because of paralysis but are up in a wheelchair will be considered ambulatory for the purpose of assessing the performance score.
• Must start radiation therapy within 42 days from date of diagnostic imaging. C1D1 must be within 42 days to 70 days post radiation (6-10 weeks). Patients CANNOT receive temozolomide during radiation
• Corticosteroids should be weaned as tolerated after radiation therapy with the goal of < or = 0.5mg/kg/day for a minimum of 7 days prior to enrollment.
• Subjects must have measurable disease

Exclusion Criteria

• Patients cannot receive temozolomide during radiation
• Disseminated disease
• Subjects who have received any cancer therapy except for radiation
• Autoimmune or immune disorders
• Active respiratory disorder or infection
• Active viral infection

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Study Description

Substudy 01A is part of a platform study. The purpose of this study is to assess the efficacy and safety of zilovertamab vedotin in pediatric participants with relapsed or refractory B-cell acute lymphoblastic leukemia (B-ALL), diffuse large B-cell lymphoma (DLBCL)/Burkitt lymphoma, or neuroblastoma and in pediatric and young adult participants with Ewing sarcoma.

Inclusion Criteria

• For hematological malignancies: Confirmed diagnosis of B-precursor B-ALL or DLBCL/Burkitt lymphoma according to World Health Organization (WHO) classification of neoplasms of the lymphoid tissues.
• For solid tumor malignancies: Histologically confirmed diagnosis of neuroblastoma or Ewing sarcoma.

Exclusion Criteria

• History of solid organ transplant.
• Clinically significant (ie, active) cardiovascular disease.
• Known history of liver cirrhosis.
• Ongoing Grade >1 peripheral neuropathy.
• Demyelinating form of Charcot-Marie-Tooth disease.
• Diagnosed with Down syndrome.
• Ongoing graft-versus-host disease (GVHD) of any grade or receiving systemic GVHD treatment or prophylaxis.
• History of human immunodeficiency virus (HIV) infection.
• Contraindication or hypersensitivity to any of the study intervention components.
• Received prior radiotherapy within 4 weeks of start of study intervention. Participants must have recovered from all radiation-related toxicities.
• Ongoing, chronic corticosteroid therapy (exceeding 10 mg daily of prednisone equivalent). Prednisone equivalent dosing must have been stable for at least 4 weeks before Cycle 1 Day 1 (C1D1).
• Received a strong cytochrome P450 3A4 (CYP3A4) inhibitor within 7 days or a strong CYP3A4 inducer within 14 days before the start of study intervention or expected requirement for chronic use of a strong CYP3A4 inhibitor or inducer during the study intervention period and for 30 days after the last dose of study intervention
• Received prior systemic anticancer therapy including investigational agents within 4 weeks before the first dose of study intervention (except for prophylactic intrathecal chemotherapy and/or cytoreductive therapy with steroids/hydroxyurea.
• Received a live or live-attenuated vaccine within 30 days before the first dose of study intervention. Administration of killed vaccines is allowed.
• Has received an investigational agent or has used an investigational device within 4 weeks prior to study intervention administration.
• Known additional malignancy that is progressing or has required active treatment within the past 1 year.
• Active infection requiring systemic therapy.
• Known history of Hepatitis B or known active Hepatitis C virus infection.
• Participants who have not adequately recovered from major surgery or have ongoing surgical complications.

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Study Description

This study is conducted in two phases. The phase 1 portion of the study evaluates the safety, tolerability, pharmacokinetics (PK), recommended phase 2 dose (RP2D), and effectiveness of lurbinectedin monotherapy in pediatric participants with previously treated solid tumors. This is followed by the phase 2 portion, to further assess the effectiveness and safety in pediatric and young adult participants with recurrent/refractory Ewing sarcoma.

This study is currently enrolling on:

Dose Level 2.6 mg/m2 for patients ≥ 2-<6 years old with advanced solid tumors - Slots Available

Dose Level 3.2 mg/m2 for patients ≥ 6-18 years old with advanced solid tumors (Phase 1 Part 1, Safety Expansion Cohort) - No Slots Available

Dose Level 3.2 mg/m2 for participants ≥6 to <30 years of age with advanced Ewing sarcoma (Phase 1 Part 2, Efficacy Cohort) - Pending Opening

Inclusion Criteria

• Participant must meet the following age requirements at the time the informed consent form (ICF) (and assent form, if applicable) is signed:
  • Phase 1 Part 1: participants must be ≥ 2 to < 18 years of age.
  • Phase 1 Part 2: participants must be ≥ 2 to ≤ 30 years of age.
  • Phase 2: participants must be ≥ 2 to ≤ 30 years of age.
• Participant has a confirmed solid tumor
• The participant has a Lansky/Karnofsky performance status score of ≥ 50%.
• The participant has adequate liver function, evidenced by the following laboratory values:
  • Aspartate aminotransferase (AST), alanine aminotransferase (ALT) ≤ 2.5 × upper limit of normal (ULN).
  • Total bilirubin ≤ 1.5 × institutional ULN (with the exception of participants with Gilbert's syndrome who must have bilirubin < 3 × institutional ULN).
• The participant has adequate bone marrow function, evidenced by the following:
  • Absolute neutrophil count (ANC) ≥ 1.0 × 109/L (independent of growth factor support within 1 week of screening laboratories).
• Platelets ≥ 100 × 109/L (without platelet transfusion within previous 7 days of screening laboratories).
  • Hemoglobin ≥ 8 g/dL (note: may have been transfused).
• The participant has an adequate renal function:
  • Calculated creatinine clearance (use Cockcroft-Gault formula for participants ≥ 18 years; Schwartz equation for participants < 18 years) ≥ 60 mL/min.
• The participant has an adequate cardiac function:
  • Left ventricular ejection fraction or shortening fraction per institutional norm ≥ institutional lower level of normal.
• The participant has creatine phosphokinase ≤ 2.5 × institutional ULN.
• The participant has body weight ≥ 15 kg.
• Capable of giving signed informed consent, which includes compliance with the requirements and restrictions listed in the ICF and in this protocol.

Male participants 

• Male participants are eligible to participate if they agree to the following during the study intervention period and for at least 4 months after the last dose of study intervention:
  • Refrain from donating sperm AND
  • Be abstinent from heterosexual intercourse as their preferred and usual lifestyle (abstinent on a long-term and persistent basis) and agree to remain abstinent 
  • OR must agree to use contraception/barrier as detailed below:
    • Agree to use a male condom with female partner and use of an additional highly effective contraceptive method with a failure rate of < 1% per year when having sexual intercourse with a Woman of childbearing potential (WOCBP) who is not currently pregnant.
    • Note: male participants who are azoospermic (vasectomized or due to a medical cause) are still required to follow the protocol-specified contraception/barrier criteria.

Female participants

• A female participant is eligible to participate if she is not pregnant or breastfeeding, and one of the following conditions applies:
  • Is a Woman of nonchildbearing potential (WONCBP). OR
  • Is a WOCBP and using an acceptable contraceptive method during the study intervention period (at least 7 months after the last dose of study intervention). The investigator should evaluate the potential for contraceptive method failure (eg, noncompliance, recently initiated) in relationship to the first dose of study intervention.
  • A WOCBP must have a negative highly sensitive pregnancy test (urine or serum as required by local regulations) within 7 days before the first dose of study intervention
    • If a urine test cannot be confirmed as negative (eg, an ambiguous result), a serum pregnancy test is required. In such cases, the participant must be excluded from participation if the serum pregnancy result is positive.
  • Additional requirements for pregnancy testing during and after study intervention.
  • The investigator is responsible for review of medical history, menstrual history, and recent sexual activity to decrease the risk for inclusion of a woman with an early undetected pregnancy.

Exclusion Criteria

• Corrected QT interval (QTc) prolongation defined as a QTc ≥ 470 ms using the Bazett formula.
• Known symptomatic Central nervous system (CNS) metastases requiring steroids. Participants with previously diagnosed CNS metastases are eligible if they have completed their treatment and have recovered from the acute effects of radiation therapy or surgery prior to enrollment, have discontinued high dose steroid treatment for these metastases for at least 2 weeks, and are neurologically stable (physiologic doses of steroids and short courses of steroids for other indications are acceptable).
• Persisting toxicity related to prior therapy; however, alopecia, sensory neuropathy, hypothyroidism, and rash Grade ≤ 2 are acceptable, and other Grade ≤ 2 adverse events (AEs) not constituting a safety risk based on the investigator's judgement are acceptable.
• An uncontrolled intercurrent illness including but not limited to ongoing or active infection requiring antibiotic, antifungal, or antiviral therapy, symptomatic heart failure, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.
• Any other major illness that, in the investigator's judgment, could substantially increase the risk associated with participation in this study.
• Any other diseases, metabolic dysfunction, physical examination finding, or clinical laboratory finding giving reasonable suspicion of a disease or condition that contraindicates the use of an investigational drug or that may affect the interpretation of the results or render the participant at high-risk for treatment complications.
• Received prior treatment with lurbinectedin or trabectedin.
• Received prior treatment with any investigational product within 4 weeks of first infusion of study intervention. Observational studies are permitted.
• Received live or live attenuated vaccines within 4 weeks of the first dose of study treatment or plans to receive live vaccines during study participation. Administration of inactive vaccines or messenger ribonucleic acid (mRNA) vaccines (for example, inactivated influenza vaccines or COVID-19 vaccines) are allowed.
• Had major surgery ≤ 4 weeks or radiation therapy ≤ 2 weeks prior to enrollment unless fully recovered. Prior palliative radiotherapy is permitted, provided it was completed at least 2 weeks prior to participant enrollment.
• Received prior allogeneic bone marrow transplantation or solid organ transplant.
• Received chemotherapy ≤ 3 weeks prior to start of study intervention.
• Hepatitis B virus (HBV) or Hepatitis C virus (HCV) infection at screening (positive HBV surface antigen or Polymerase chain reaction (PCR) test for HCV RNA if HCV antibody test is positive).
• Human immunodeficiency infection at screening (positive anti-HIV antibody).
• Has a known or suspected hypersensitivity to any of the components of the study intervention.
• The participant or parent(s)/guardian(s) is/are unable to comply with the study visit schedule and other protocol requirements, in the opinion of the investigator

Other exclusion criteria may apply

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Study Description

 This study is eligible for STEP-1 funding. Find more information here. 

This phase I/II trial studies how well tiragolumab and atezolizumab works when given to children and adults with SMARCB1 or SMARCA4 deficient tumors that that has either come back (relapsed) or does not respond to therapy (refractory). SMARCB1 or SMARCA4 deficiency means that tumor cells are missing the SMARCB1 and SMARCA4 genes, seen with some aggressive cancers that are typically hard to treat. Immunotherapy with monoclonal antibodies, such as tiragolumab and atezolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread.

OUTLINE: Patients are assigned to Part A or Part B.

Please note: Part A is now complete. 

PART A: Patients receive tiragolumab intravenously (IV) over 30-90 minutes on day 1 of each cycle and atezolizumab IV over 30-60 minutes on day 1 of each cycle starting in cycle 2. Treatment repeats every 21 days for up to 5 years in the absence of disease progression or unacceptable toxicity. Patients undergo standard imaging scans including x-rays, computed tomography (CT), magnetic resonance imaging (MRI), and/or positron emission tomography (PET)-CT throughout the trial. Patients also undergo blood sample collection on study.

PART B: Patients receive atezolizumab IV over 30-60 minutes on day 1 and tiragolumab IV over 30-90 minutes on day 1 of each cycle. Treatment repeats every 21 days for up to 5 years in the absence of disease progression or unacceptable toxicity. Patients also undergo standard imaging scans including x-rays, CT, MRI, and/or FDG PET-CT, throughout the trial. Patients also undergo blood sample collection on study.

After completion of study treatment, patients are followed up at months 3, 6, 9, 12, 18, 24, 36, 48, and 60, up to 5 years.

PRIMARY OBJECTIVES:

I. To evaluate the safety of tiragolumab as monotherapy in pediatric patients (<18 years) with SMARCB1 or SMARCA4 deficient tumors. (Part A) II. To evaluate antitumor activity of the combination of tiragolumab and atezolizumab as assessed by objective response rate in patients with SMARCB1 or SMARCA4 deficient tumors per Response Evaluation Criteria in Solid Tumors (RECIST) version (v) 1.1 (for non-central nervous system [CNS] tumors) or CNS response criteria (for CNS tumors). (Part B) III. To evaluate the safety and adverse event profile of this combination therapy in subjects with SMARCB1 or SMARCA4 deficient tumors, with a particular focus in pediatric patients < 12 years of age.

SECONDARY OBJECTIVES:

I. To characterize the pharmacokinetics of tiragolumab alone in part A and tiragolumab and atezolizumab (part A and B) when given in combination in pediatric, adolescents and young adults, and adult patients.

II. To estimate the PFS (progression free survival), OS (overall survival), and duration of response of combination tiragolumab and atezolizumab in patients with SMARCB1 or SMARCA4 deficient tumors.

EXPLORATORY OBJECTIVES:

I. To assess the association of response rate to somatic genetic mutations of SMARCB1 or SMARCA4 and PD-L1 expression.

II. To assess the association of response rate to the molecular subtypes of rhabdoid/atypical teratoid rhabdoid tumor (ATRT).

III. To assess changes in circulating and tumoral immune markers in patients treated with this combination therapy and correlate to response when feasible.

Inclusion Criteria

Part A is now completed, Part B criteria now applies: 

• Patients must be >= 12 months of age at the time of study enrollment. For part B, there is no upper age limit
  • The Part B (phase 2) cohorts will initially open concurrently with the part A but will only enroll patients at least 18 years of age. Patients <18 years of age will be included in the part B cohorts only after the tiragolumab monotherapy dose has been assessed to be safe in the part A portion
• Patients must have SMARCB1 (INI1) or SMARCA4 deficient tumors verified through institutional immunohistochemistry (IHC) or molecular confirmation of a pathologic tumor bi-allelic SMARCB1 (INI1) or SMARCA4 loss or mutation from a Clinical Laboratory Improvement Act (CLIA) certified lab with the following disease histologies:
  • Renal medullary carcinoma
  • Malignant rhabdoid tumor (extra-CNS)
  • Atypical teratoid rhabdoid tumor (CNS)
  • Poorly differentiated chordoma
  • Epithelioid sarcoma
  • Other SMARCB1 or SMARCA4 deficient tumors
• Part A: Patients must have either measurable or evaluable disease Part B: Patients must have either measurable disease per RECIST v1.1 for non-CNS tumors or CNS response criteria for CNS tumors
• Patients must have relapsed, refractory disease or newly diagnosed disease for which there is no known curative therapy or therapy proven to prolong survival with an acceptable quality of life
• Patients must have a performance status corresponding to Eastern Cooperative Oncology Group (ECOG) scores of 0, 1 or 2 (Karnofsky/Lansky score of > 50). Use Karnofsky for patients > 16 years of age and Lansky for patients =< 16 years of age. Note: Neurologic deficits in patients with CNS tumors must have been stable for at least 7 days prior to study enrollment. Patients who are unable to walk because of paralysis, but who are up in a wheelchair, will be considered ambulatory for the purpose of assessing the performance score
• Patients must have fully recovered from the acute toxic effects of all prior anti-cancer therapy and must meet the following minimum duration from prior anti-cancer directed therapy prior to enrollment. If after the required timeframe, the numerical eligibility criteria are met, e.g., blood count criteria, the patient is considered to have recovered adequately
  • Cytotoxic chemotherapy or other anti-cancer agents known to be myelosuppressive: See Developmental Therapeutics (DVL) homepage on the Children's Oncology Group (COG) Members site for commercial and investigational agent classifications. For agents not listed, the duration of this interval must be discussed with the study chair and the study-assigned Research Coordinator prior to enrollment
    • >= 21 days after the last dose of myelosuppressive chemotherapy (42 days if prior nitrosourea). Please refer to the table of myelosuppressive/Anticancer Agents on the COG website: https://www.cogmembers.org/uploadedFiles/Site/Disc/DVL/Documents/TableOfMyelosuppressiveAnti-CancerAgents.pdf
  • Anti-cancer agents not known to be myelosuppressive (e.g., not associated with reduced platelet or absolute neutrophil count [ANC] counts): >= 7 days after the last dose of agent. See the DVL homepage on the COG Members site for commercial and investigational agent classifications. For agents not listed, the duration of this interval must be discussed with the study chair and the study-assigned Research Coordinator prior to enrollment
  • Antibodies: >= 21 days must have elapsed from infusion of last dose of antibody, and toxicity related to prior antibody therapy must be recovered to grade =< 1
  • Hematopoietic growth factors: >= 14 days after the last dose of a long-acting growth factor (e.g., pegfilgrastim) or 7 days for short acting growth factor. For agents that have known adverse events occurring beyond 7 days after administration, this period must be extended beyond the time during which adverse events are known to occur
  • Interleukins, interferons and cytokines (other than hematopoietic growth factors): >= 21 days after the completion of interleukins, interferon or cytokines (other than hematopoietic growth factors)
  • Stem cell infusions (with or without total-body irradiation [TBI]):
    • Autologous stem cell infusion including boost infusion: >= 30 days
  • Cellular therapy: >= 30 days after the completion of any type of cellular therapy (e.g., modified T cells, natural killer [NK] cells, dendritic cells, etc.)
  • External radiation therapy (XRT)/external beam irradiation including protons: >= 14 days after local XRT; >= 150 days after TBI, craniospinal XRT or if radiation to >= 50% of the pelvis; >= 42 days if other substantial bone marrow (BM) radiation
  • Radiopharmaceutical therapy (e.g., radiolabeled antibody, iodine I 131 metaiodobenzylguanidine [131I MIBG]): >= 42 days after systemically administered radiopharmaceutical therapy
  • Patients must not have had prior TIGIT targeting therapy
  • Patients must not have received prior therapy with an anti- PD-1, anti-PD-L1, anti-PD-L2, or anti-CTLA4 agent or with an agent directed to another stimulatory or co-inhibitory T cell receptor (i.e. OX-40, CD137)
  • Patients must not have received live/attenuated vaccine within 30 days of first dose of treatment
  • Patients must not be receiving concomitant systemic steroid medications and > 14 days must have elapsed since last dose of systemic corticosteroid with the following exceptions:
    • The use of physiologic doses of corticosteroids (5 mg/m^2/day up to 10 mg/day of prednisone equivalent) is acceptable
    • The use of topical, inhaled, or ophthalmic corticosteroids are acceptable
    • The use of acute, low-dose systemic immunosuppressant medication or a one-time pulse dose of systemic immunosuppressant medication (e.g., 48 hours of corticosteroids for a contrast allergy) are acceptable
  • Treatment with systemic immunosuppressive medication (including, but not limited to, cyclophosphamide, azathioprine, methotrexate, thalidomide, and anti-tumor necrosis factor-alpha [TNF-alpha] agents) must have concluded >= 14 days prior to study enrollment
• For patients with solid tumors without known bone marrow involvement
  • Peripheral absolute neutrophil count (ANC) >= 1000/uL (must be performed within 7 days prior to enrollment)
• For patients with solid tumors without known bone marrow involvement
  • Platelet count >= 100,000/uL (transfusion independent, defined as not receiving platelet transfusions for at least 7 days prior to enrollment) (must be performed within 7 days prior to enrollment)
• Patients with known bone marrow metastatic disease will be eligible for study provided they meet the blood counts above (may receive transfusions provided they are not known to be refractory to red cell or platelet transfusions). These patients will not be evaluable for hematologic toxicity
• A creatinine based on age/gender as follows (must be performed within 7 days prior to enrollment):
  • Age; Maximum Serum Creatinine (mg/dL)
    • 1 to < 2 years; Male: 0.6; Female: 0.6
    • 2 to < 6 years; Male: 0.8; Female: 0.8
    • 6 to < 10 years; Male: 1; Female: 1
    • 10 to < 13 years; Male: 1.2; Female: 1.2
    • 13 to < 16 years; Male: 1.5; Female: 1.4
    • >= 16 years; Male: 1.7; Female: 1.4 OR- a 24 hour urine creatinine clearance >= 70 mL/min/1.73 m^2 (must be performed within 7 days prior to enrollment) OR- a glomerular filtration rate (GFR) >= 70 mL/min/1.73 m^2. GFR must be performed using direct measurement with a nuclear blood sampling method OR direct small molecule clearance method (iothalamate or other molecule per institutional standard) (must be performed within 7 days prior to enrollment)
  • Note: Estimated GFR (eGFR) from serum creatinine, cystatin C or other estimates are not acceptable for determining eligibility
• Bilirubin (sum of conjugated + unconjugated or total) =< 1.5 x upper limit of normal (ULN) for age (must be performed within 7 days prior to enrollment)
  • Patients with known Gilbert disease: Total bilirubin < 3 x ULN
• Serum glutamic pyruvic transaminase (SGPT) (alanine aminotransferase [ALT]) =< 135 U/L (must be performed within 7 days prior to enrollment). For the purpose of this study, the ULN for SGPT is 45 U/L
• Albumin >= 2 g/dL (must be performed within 7 days prior to enrollment)
• Patients with seizure disorder may be enrolled if on anticonvulsants and well controlled as evidenced by no increase in seizure frequency in the prior 7 days
• Nervous system disorders (Common Terminology Criteria for Adverse Events [CTCAE] v5) resulting from prior therapy must be =< grade 2, with the exception of decreased tendon reflex (DTR). Any grade of DTR is eligible
• International normalized ratio (INR) =< 1.5 (must be performed within 7 days prior to enrollment)
• Serum amylase =< 1.5 x ULN (must be performed within 7 days prior to enrollment)
• Serum lipase =< 1.5 x ULN (must be performed within 7 days prior to enrollment)
• Grade 1 or lower calcium level
  • Note: can have history of hypercalcemia as long as controlled and asymptomatic

Exclusion Criteria

• Pregnant or breast-feeding women will not be entered on this study due to risks of fetal and teratogenic adverse events as seen in animal/human studies, OR because there is yet no available information regarding human fetal or teratogenic toxicities. Pregnancy tests must be obtained in girls who are post-menarchal. Males or females of reproductive potential may not participate unless they have agreed to use two effective methods of birth control, including a medically accepted barrier or contraceptive method (e.g., male or female condom) for the duration of therapy and at least 90 days after final dose of tiragolumab and 150 days after final dose of atezolizumab, whichever is later. Abstinence is an acceptable method of birth control.
  • It is not known if atezolizumab or tiragolumab are present in breast milk; however, IgG immunoglobulins are found in milk. Due to the potential for serious adverse reactions in the breastfed infant, breastfeeding is not recommended during therapy and for at least 150 days after the last dose of atezolizumab and 90 days after the last dose of tiragolumab, whichever is later
• Concomitant medications:
  • Corticosteroids:
    • Patients must not be receiving concomitant systemic steroid medications and >= 14 days must have elapsed since last dose of systemic corticosteroid with the following exceptions:
      • The use of physiologic doses of corticosteroids (5 mg/m^2/day up to 10 mg/day of prednisone equivalent) is acceptable
      • The use of topical, inhaled, or ophthalmic corticosteroids are acceptable
      • The use of acute, low-dose systemic immunosuppressant medication or a one-time pulse dose of systemic immunosuppressant medication (e.g. 48 hours of corticosteroids for a contrast allergy) are acceptable
  • Investigational drugs: Patients who are currently receiving another investigational drug are not eligible
  • Anti-cancer Agents: Patients who are currently receiving other anti-cancer agents are not eligible
  • Systemic immunosuppressive medications (including, but not limited to, cyclophosphamide, azathioprine, methotrexate, and thalidomide) during study treatment because these agents could potentially alter the efficacy and safety of study treatments would not be eligible
• Patients must not have a known hypersensitivity to any component of tiragolumab or atezolizumab injection
• History of severe allergic anaphylactic reactions to chimeric or humanized antibodies or fusion proteins
• Known hypersensitivity to Chinese hamster ovary cell products or to any component of the atezolizumab or tiragolumab formulation
• Patients who have undergone allogeneic bone marrow or stem cell transplant are not eligible
• Patients with known, untreated CNS metastases will be excluded with the following exceptions:
  • Patients with a history of CNS metastases that have been previously treated may enroll if sequential imaging shows no evidence for active disease in the CNS
• Patients must not have active autoimmune disease that has required systemic treatment in the past 12 months, or a documented history of clinically severe autoimmune disease, or a syndrome that requires systemic steroids or immunosuppressive agents. Subjects with vitiligo or resolved childhood asthma/atopy are not excluded. Replacement therapy (e.g. thyroxine, insulin, physiologic corticosteroid replacement therapy for adrenal or pituitary insufficiency, etc.) is not considered a form of systemic treatment and these patients are eligible
• Patients who have active immune deficiency are not eligible
• Patients who have known active tuberculosis are not eligible
• Hepatitis B or C infection:
  • Patients < 18 years old at enrollment, who have known hepatitis B or C
  • Patients >= 18 years old at enrollment with:
    • Positive hepatitis B surface antigen (HBsAg), OR
    • Positive total hepatitis B core antibody (HBcAb) who have a quantitative hepatitis B virus (HBV) deoxyribonucleic acid (DNA) >= 500 IU/mL, OR
    • Positive hepatitis C virus (HCV) antibody with a positive HCV ribonucleic acid (RNA) test
    • Note: For adults (>= 18 years old at enrollment), hepatitis B serology testing is required to determine eligibility. The HBV DNA test is required only for patients who have a negative HBsAg test, a negative HBsAb test, and a positive total HBcAb test. For adults (>= 18 years old at enrollment), hepatitis C serology testing is required to determine eligibility. The HCV RNA test is required only for patients who have a positive HCV antibody test
• Patients who have a known, recent Epstein-Barr virus (EBV) infection or known history of chronic, active infection are not eligible
• Patients who have history of or active human immunodeficiency virus (HIV) are not eligible except patients who are stable on anti-retroviral therapy, have a CD4 count >= 200/uL, and have an undetectable viral load
• Patients who have significant cardiovascular disease (such as New York Heart Association class III or IV congestive heart failure, myocardial infarction, or cerebrovascular accident) within 3 months prior to study enrollment, unstable arrhythmia, or unstable angina are not eligible
• Patients who have a major surgical procedure, other than for diagnosis, within 4 weeks prior to study enrollment, or the anticipation of the need for a major surgical procedure during the study are not eligible
• Patients who have a history of idiopathic pulmonary fibrosis, organizing pneumonia, drug-induced pneumonitis, idiopathic pneumonitis, or known active pneumonitis are not eligible. History of radiation pneumonitis in the radiation field is permitted
• Patients who have uncontrolled pleural effusion, pericardial effusion, or ascites requiring recurrent drainage procedures (once monthly or more frequently) are not eligible. Patients with indwelling catheters (e.g., PleurX) are allowed
• Patients who have an uncontrolled infection are not eligible
• Patients who have received a prior solid organ transplantation are not eligible
• Patients who in the opinion of the investigator may not be able to comply with the safety monitoring requirements of the study are not eligible

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Centres

Study Description

A Phase I open-label, multicentre study to determine the RP2D of olaparib monotherapy in the paediatric population, and to evaluate the safety, tolerability, PK, PDx and preliminary efficacy of olaparib monotherapy in paediatric patients from ≥6 months to <18 years of age at enrolment, with relapsed or refractory solid or primary CNS tumours (excluding lymphoid malignancies) for whom there are no standard treatment options. It is anticipated that eligible patients fulfilling all of the inclusion criteria and none of the exclusion criteria, will include but will not be limited to those with osteosarcoma, rhabdomyosarcoma, non-rhabdomyosarcoma soft tissue sarcoma, Ewing Sarcoma, neuroblastoma, medulloblastoma and glioma.

Inclusion Criteria

• Provision of Informed Consent
• Male and female patients who are ≥6 months to <18 years of age at consent
• Pathologically confirmed relapsed or refractory solid or primary CNS tumours (excluding lymphoid malignancies), with a HRR deficiency/gene mutation, and for whom there are no standard treatment options. Eligible patients may include but not be limited to those with osteosarcoma, rhabdomyosarcoma, non rhabdomyosarcoma soft tissue sarcoma, Ewing Sarcoma, neuroblastoma, medulloblastoma and glioma
• For dose finding phase only: recruitment will be open to all patients with HRR deficiency, based on a local test. For the signal identification phase: recruitment will be open only to patients with documented evidence of a deleterious or suspected deleterious germline or tumour HRR gene mutation that meets the AZ HRR rules
• A formalin fixed, paraffin embedded (FFPE) tumour sample from the primary cancer (all patients) suitable for central HRR testing and a blood sample (patients ≥2 years old) for central germline BRCA testing must be provided for each patient
• For all non-neuroblastoma tumours, patients must have at least 1 radiographical assessable lesion (measurable and/or non-measurable). For neuroblastoma tumours, patients must have radiographical assessable disease with at least 1 lesion (measurable and/or non measurable) OR disease evidenced by uptake of meta-iodobenzylguanidine- (MIBG) or fluorodeoxyglucose positron emission tomography (FDG-PET) scans
• Adequate performance status, organ, and marrow function and adequate weight to obtain blood samples for both safety laboratory assessments and PK analysis.
• Ability to swallow tablets

Exclusion Criteria

• Patients with MDS/AML or with features suggestive of MDS/AML
• Patients unable to swallow orally administered medication
• Unresolved toxicity from previous anticancer therapy
• Unstable or untreated CNS disease (i.e., symptomatic uncontrolled brain metastases or untreated spinal cord compression)
• Previous treatment with a PARP inhibitor, including olaparib
• Receipt of any radiotherapy for cancer treatment (except for palliative reasons) within 30 days prior to first dose of study treatment or receipt of last dose of an approved (marketed) anticancer therapy (chemotherapy, targeted therapy, biologic therapy, monoclonal antibodies, etc) within 21 days prior to the first dose of study treatment
• Concomitant use of known strong or moderate CYP3A inhibitors or concomitant use of known strong or moderate CYP3A inducers
• Whole blood transfusions in the last 120 days prior to screening (packed red blood cells and platelet transfusions are acceptable)

Multiple other exclusion criteria could apply and will be reviewed by your treating team.

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Centres

Study Description

Brief Summary:

FIREFLY-1 is a Phase 2, multi center, open-label study to evaluate the safety and efficacy of oral pan-RAF inhibitor DAY101 in pediatric, adolescent, and young adult patients with recurrent or progressive low-grade glioma harboring a known BRAF alteration.

Detailed Description:

Approximately 60 pediatric patients will be treated with DAY101, an oral pan-RAF inhibitor, for a planned period of 26 cycles will be treated with DAY101 for a planned period of 26 cycles (approximately 24 months).

DAY101 will be administered at the recommended Phase 2 dose (RP2D) of 420 mg/m2 (not to exceed 600 mg) orally once weekly (QW) for each 28-day treatment cycle.

Treatment cycles will repeat every 28 days in the absence of disease progression or unacceptable toxicity. Patients will undergo radiographic evaluation of their disease at the end of every third cycle. Patients will continue on DAY101 until radiographic evidence of disease progression by RANO criteria as determined by treating investigator, unacceptable toxicity, patient withdrawal of consent, or death.

Patients who have radiographic evidence of disease progression may be allowed to continue DAY101 if, in the opinion of the investigator and approval by the Sponsor, the patient is deriving clinical benefit from continuing study treatment. Disease assessments for patients being treated beyond progression should continue as per regular schedule.

DAY101 is an oral pan-RAF inhibitor administered as an oral tablet at 420 mg/m2 (not to exceed 600 mg).

Inclusion Criteria

• Age 6 months to 25 years with a relapsed or progressive LGG or solid tumor with known activating RAF alteration (BRAF or CRAF/RAF1 fusion or BRAF V600 mutations (LGG only))
• Confirmation of histopathologic diagnosis of LGG or solid tumor and molecular diagnosis of activating RAF alteration (BRAF or CRAF/RAF1 fusion or BRAF V600 mutations (LGG only))
• Must have received at least one line of systemic therapy and have evidence of radiographic progression
• Must have at least 1 measurable lesion as defined by RANO criteria

Exclusion Criteria

• Patient's tumor has additional previously-known activating molecular alterations
• Patient has symptoms of clinical progression in the absence of radiographic progression
• Known or suspected diagnosis of neurofibromatosis type 1 (NF-1)
• Other inclusion/exclusion criteria as stipulated by protocol may apply